CN113514391A - Coating test sample plate difference marking device and difference marking method - Google Patents
Coating test sample plate difference marking device and difference marking method Download PDFInfo
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- CN113514391A CN113514391A CN202110274062.1A CN202110274062A CN113514391A CN 113514391 A CN113514391 A CN 113514391A CN 202110274062 A CN202110274062 A CN 202110274062A CN 113514391 A CN113514391 A CN 113514391A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention belongs to the technical field of test sample preparation, and particularly relates to a coating test sample plate difference marking device and a difference marking method. The device includes: the device comprises an operating platform, a longitudinal guide rail, a transverse guide rail, a first knife rest and a puncture mechanism. The operating platform is provided with a fixing mechanism, two longitudinal guide rails are arranged at two ends of the operating platform respectively, and longitudinal scales are arranged on the outer sides of the two longitudinal guide rails; the transverse side of the transverse guide rail is provided with a transverse scale which is vertical to the longitudinal scale; the number of the first knife rests is 2, the first knife rests are sequentially arranged on the transverse guide rails, the puncturing mechanism is arranged on the transverse guide rails among the 2 first knife rests, the puncturing mechanism can scratch the coating test sample wafer, and the puncturing mechanism can operatively adjust the scratch depth. The coating test sample marking difference device and the coating test sample marking difference method provided by the invention solve the problems of deviation of scratch length values and width values and uneven depths caused by manual operation in the prior art, and the prepared coating test sample is standard and standard.
Description
Technical Field
The invention belongs to the technical field of test sample preparation, and particularly relates to a coating test sample plate difference marking device and a difference marking method.
Background
With the rapid growth of population and rapid development of economy on the earth, limited natural resources on the earth are increasingly exhausted, and the development of lightweight and low-cost equipment processing and manufacturing materials is concerned by human beings. In the fields of marine environment and offshore environment equipment processing and manufacturing, the coating material is one of choices which can partially replace steel materials for marine engineering due to low price and excellent corrosion resistance. The application of coating or de-coating for steel materials for ocean engineering has become a hot spot in the field of ocean equipment processing and manufacturing, and the bonding performance of the coating and the steel materials has become a focus of attention. The neutral salt spray test after marking the coating test sample is one of the conventional means for evaluating the binding force of the coating and the steel material, and the current common marking method of the coating test sample is a marking method, namely, a starting point of a mark is firstly measured on the coating sample by a ruler and a marking pen, and then the coating is cut and stripped by a cutter.
In carrying out the present invention, the applicant has found that at least the following disadvantages exist in the prior art:
1) the length of the scratch is not easy to control, and although the starting point and the stopping point of the scratch are marked, the inertia of manual operation is easy to generate deviation.
2) The width of the scratch is not easy to control, and the width fluctuation is large. The scratch test requires that the scratch width of the coating test sample plate is uniform and consistent, so that the bonding performance of the coating and the substrate can be accurately judged only after the test period is finished, and if the scratch width fluctuates greatly before the test, the accuracy and reliability of the test result are seriously influenced.
3) The depth of the scratch is not easy to control, and the depth of the scratch is difficult to be uniform due to the influence of the manual strength of an experimenter, so that the measurement precision of the test is very easy to influence.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a coating test sample plate difference scribing device and a difference scribing method, which aim to solve the technical problem that the length, the width and the depth of scratches of a coating test sample plate are not easy to control in the prior art.
The technical scheme of the invention is as follows:
in one aspect, the present invention provides a device for marking a coating test sample plate, wherein the device comprises:
the device comprises an operating platform, a fixing mechanism and a control device, wherein the operating platform is provided with the fixing mechanism, and the fixing mechanism can fix a coating test sample on the operating platform;
the two longitudinal guide rails are transversely and oppositely arranged on the operating platform, the longitudinal scales and the longitudinal guide rails are correspondingly arranged, and one longitudinal scale is arranged on the outer side of each longitudinal guide rail;
the transverse guide rails can vertically move on the longitudinal guide rails, the longitudinal ends of the transverse guide rails are detachably connected to the two longitudinal guide rails, and transverse scales are arranged on the longitudinal two sides of the top surface of each transverse guide rail;
the first tool holders are arranged on the transverse guide rail at intervals along the transverse direction, each first tool holder can move on the transverse guide rail, and the first tool holders are detachably connected to the transverse guide rail;
puncture mechanism, puncture mechanism sets up two between the first blade carrier on the transverse guide, puncture mechanism can remove on the transverse guide, puncture mechanism can mar on the experimental sample wafer of application, puncture mechanism can operably adjust the mar degree of depth.
Further, the puncture mechanism includes:
a second tool holder;
the control mechanism is arranged on the top surface of the second tool rest;
the cutter needle, the cutter needle with knife rest nut bottom is connected, the cutter needle can pass the experimental sample piece of application, control mechanism can control the cutter needle passes the degree of depth of the experimental sample piece of application.
Further, the control mechanism is a tool holder nut.
Further, the fixing mechanism includes: the pressing piece is arranged on the operating table;
and the compression nut fixes the compression sheet on the operating table.
Furthermore, the operating platform is provided with two groups of pressing pieces transversely and oppositely, each group of pressing pieces comprises two pressing pieces, one of the pressing pieces is arranged at one longitudinal end of the operating platform, and the other pressing piece is arranged at the other longitudinal end of the operating platform.
Furthermore, the longitudinal two ends of the transverse guide rail are detachably connected to the two longitudinal guide rails through longitudinal fastening nuts, the transverse guide rail is transversely and oppositely provided with two groups of longitudinal fastening nuts, each group of longitudinal fastening nuts comprises two longitudinal fastening nuts, one longitudinal fastening nut is arranged at one longitudinal end of the transverse guide rail, and the other longitudinal fastening nut is arranged at the other longitudinal end of the transverse guide rail.
Furthermore, the first tool rest is detachably connected to the transverse guide rail through a transverse fastening nut, and two longitudinal ends of the first tool rest are respectively provided with a transverse fastening nut.
On the other hand, the invention also provides a marking method of the marking device of the coating test sample plate, which comprises the following steps:
fixing the coating test sample plate on the operating platform by using the fixing mechanism;
pushing the transverse guide rail to slide on the longitudinal guide rail, and fixing the transverse guide rail on the longitudinal guide rail when the transverse guide rail is pushed to a longitudinal first marking differential line position of the coating test sample plate;
pushing the two first tool rests on the fixed transverse guide rail, reading a length value between the two first tool rests on the transverse scale, and fixing the first tool rest on the transverse guide rail when the length value is equal to a length value of a target scratch of the coating test sample plate;
the depth of the puncture mechanism for puncturing the coating test sample plate is adjusted, and then the puncture mechanism is pushed to repeatedly move on the transverse guide rail between the two first knife rests, so that a scribing line with uniform depth is obtained;
pushing the transverse guide rail to slide on the longitudinal guide rail, reading a length value between the first marking difference line and the transverse guide rail on the longitudinal scale, and fixing the first vehicle frame on the transverse guide rail when the length value is equal to a width value of a target mark of the coating test sample plate;
pushing the puncture mechanism to repeatedly move on the transverse guide rail between the two first knife rests again to obtain a second difference marking line with the length and the depth completely the same as those of the first difference marking line, wherein the first difference marking line is parallel to the second difference marking line;
and (4) removing the coating between the two marking difference lines by using a removing tool to obtain a scratch with an accurate length value and width value and an even depth value.
Preferably, the removal tool is a knife.
The invention has the beneficial effects that:
the invention provides a marking difference device of a coating test sample plate, which comprises an operation table, a longitudinal guide rail and two transverse guide rails, wherein the operation table is provided with a fixing mechanism, the fixing mechanism can fix a coating test sample plate on the operation table, the longitudinal guide rail and the transverse guide rails are arranged on the operation table, the two longitudinal guide rails are transversely and oppositely arranged, the longitudinal scale and the longitudinal guide rails are correspondingly arranged, the outer side of each longitudinal guide rail is provided with a longitudinal scale, the transverse guide rails can accurately determine the length of a target scratch through vertically moving on the longitudinal guide rails without generating fluctuation, the longitudinal two ends of each transverse guide rail are detachably connected on the longitudinal guide rails, the two longitudinal sides of the top surface of each transverse guide rail are provided with the transverse scales, the two first knife carriages are arranged on the transverse guide rails at intervals, the two first knife carriages can accurately determine the width of the target scratch through moving on the transverse guide rails, detachably connects on transverse guide on first knife rest, and first knife rest and transverse guide all can fix like this, and is more convenient when drawing poor, firm, and piercing mechanism sets up on the transverse guide between two first knife rests, and piercing mechanism can remove on transverse guide, and piercing mechanism can mar on the experimental sample wafer of application, and piercing mechanism can operationally adjust the mar degree of depth, guarantees that the poor degree of depth of drawing of application experimental sample is even.
The marking difference device and the using method of the coating test sample provided by the invention solve the problems of the length value, the width value deviation and the depth unevenness of the scratch caused by manual operation in the prior art, and the prepared coating test sample is standard and can better research and analyze the bonding performance of the coating and the substrate, thereby improving the bonding performance of the coating.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a top view of a coating test pattern drawing device according to the present embodiment;
fig. 2 is a side view of the coating test pattern drawing device of the present example.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a marking device for a coating test sample plate, wherein fig. 1 is a top view of the marking device for the coating test sample plate of the embodiment, fig. 2 is a side view of the marking device for the coating test sample plate of the embodiment, and with reference to fig. 1 and fig. 2, the marking device for the coating test sample plate of the embodiment comprises: the puncture outfit comprises an operating table 1, a fixing mechanism 2, a longitudinal guide rail 3, a longitudinal scale 4, a transverse guide rail 5, a transverse scale 6 and a puncture mechanism 10.
With reference to fig. 1 and 2, in this embodiment, a fixing mechanism 2 is disposed on an operating platform 1, the fixing mechanism 2 can fix a coating test sample on the operating platform 1, two longitudinal guide rails 3 are provided, the two longitudinal guide rails 3 are transversely and oppositely disposed on the operating platform 1, a longitudinal scale 4 is disposed corresponding to the longitudinal guide rails 3, a longitudinal scale 4 is disposed on an outer side of each longitudinal guide rail 3, and the longitudinal scale 4 can determine a length of a marking difference; the transverse guide rail 5 can vertically move on the longitudinal guide rail 3, the transverse two ends of the transverse guide rail 5 are detachably connected to the two longitudinal guide rails 3, transverse scales 6 are arranged on the longitudinal two sides of the top surface of the transverse guide rail 5, the transverse scales 6 can determine the width of marking difference, two first knife rests 8 are arranged, the two first knife rests 8 are arranged on the transverse guide rail 5 along the transverse interval, each first knife rest 8 can move on the transverse guide rail 5, the first knife rests 8 are detachably connected to the transverse guide rail 5, the puncture mechanism 10 is arranged on the transverse guide rail 5 between the two first knife rests 8, the puncture mechanism 10 can move on the transverse guide rail 5, the puncture mechanism 10 can scratch a coating test sample piece, and the puncture mechanism 10 can operatively adjust the scratch depth.
With reference to fig. 1 and 2, the difference marking device in this embodiment further includes two longitudinal scale pointers 11, where the two longitudinal scale pointers 11 are respectively disposed at two ends of the transverse guide rail 5, the longitudinal scale pointer 11 is overlapped with the transverse center line of the transverse guide rail 5, and the longitudinal scale pointer 11 is used to indicate a scale on the longitudinal scale 4, so as to more conveniently read a numerical value;
referring to fig. 2, the puncture mechanism 10 of the present embodiment includes: a second tool rest 1001; the control mechanism 1002, the knife needle 1003, the control mechanism 1002 is set up in the second tool rest 1001 apical surface; the knife needle 1003 is connected with the bottom of the control mechanism 1002, the knife needle 1003 can penetrate through a painting test sample, and the control mechanism 1002 can control the depth of the knife needle 1003 penetrating through the painting test sample.
Further, in this embodiment, the control mechanism 1002 is a tool rest nut, and the depth of the tool pin 1003 penetrating through the coating test piece can be controlled by rotating the tool rest nut.
Referring to fig. 1 and 2, the fixing mechanism 2 of the present embodiment includes: the pressing sheet 201 is arranged on the operation table 11, and the pressing nut 202 fixes the pressing sheet 201 on the operation table 1.
With reference to fig. 1, in this embodiment, the operating platform 1 is provided with two sets of pressing pieces 201 along the horizontal direction, and each set of pressing piece 201 includes two pressing pieces 201, and one of them pressing piece 201 sets up the vertical one end at the operating platform 1, and another pressing piece 201 sets up the vertical other end at the operating platform 1, and four pressing pieces 201 in total can make the fixed effect of application test sample piece better.
Further, in the present embodiment, the transverse rail 5 can be detachably connected to the longitudinal rail through the longitudinal fastening nut 7, the transverse rail 5 and the longitudinal rail 3 can be fixed or separated by rotating the longitudinal fastening nut 7, two sets of longitudinal fastening nuts 7 are oppositely arranged on the transverse rail 5 in the transverse direction, each set of longitudinal fastening nuts 7 comprises two longitudinal fastening nuts 7, one longitudinal fastening nut 7 is arranged at one longitudinal end of the transverse rail 5, and the other longitudinal fastening nut 7 is arranged at the other longitudinal end of the transverse rail 5.
Further, in the present embodiment, the first tool holder 8 can be detachably connected to the transverse rail 5 through a transverse fastening nut 9, the transverse and longitudinal fastening nuts 9 can be rotated to fix or separate the transverse rail 5 and the first tool holder 8, and one transverse fastening nut 9 is respectively arranged at each longitudinal end of the first tool holder 8.
Preferably, the operation table 1 in this embodiment is rectangular and conforms to the shape formed by the transverse rails 5 and the longitudinal rails 3.
The coating test pattern difference marking device of the present embodiment can be implemented as follows:
fixing the coating test sample plate on an operation table 1 by using a fixing mechanism 2;
pushing the transverse guide rail 5 to slide on the longitudinal guide rail 3, and fixing the transverse guide rail 5 on the longitudinal guide rail 3 when the transverse guide rail is pushed to a longitudinal first marking differential line position of the coating test sample plate;
pushing the two first tool rests 8 on the fixed transverse guide rail 5, reading a length value between the two first tool rests 8 on the transverse scale 6, and fixing the first tool rest on the transverse guide rail 5 when the length value is equal to a length value of a target scratch of the coating test sample plate;
the depth of the puncture mechanism 10 for puncturing the coating test sample is adjusted, and then the puncture mechanism 10 is pushed to move repeatedly on the transverse guide rail 5 between the two first knife rests 8, so that a scribing line with uniform depth is obtained;
pushing the transverse guide rail 5 to slide on the longitudinal guide rail 3, reading a length value between the first marking difference line and the transverse guide rail 5 on the longitudinal scale 4, and fixing the transverse guide rail 5 on the longitudinal guide rail 3 when the length value is equal to a width value of a target marking of the coating test sample plate;
pushing the puncture mechanism 10 to move repeatedly on the transverse guide rail 5 between the two first knife rests 8 again to obtain a second difference marking line with the length and the depth completely the same as those of the first difference marking line, wherein the first difference marking line is parallel to the second difference marking line;
and (4) removing the coating between the two marking difference lines by using a removing tool to obtain a scratch with an accurate length value and width value and an even depth value.
Preferably, the removal tool in this embodiment is a knife.
In summary, the difference marking device and the use method of the coating test sample provided by the invention solve the problems of deviation of the length value and the width value of the scratch and uneven depth caused by manual operation in the prior art, and the prepared coating test sample is standard and can better research and analyze the bonding performance of the coating and the substrate, so that the bonding performance of the coating is improved.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and it will be understood by those skilled in the art that the technical features of the present invention can be changed or modified by the equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A differential scribing apparatus for a coating test panel, said apparatus comprising:
the device comprises an operating platform, a fixing mechanism and a control device, wherein the operating platform is provided with the fixing mechanism, and the fixing mechanism can fix a coating test sample on the operating platform;
the two longitudinal guide rails are transversely and oppositely arranged on the operating platform, the longitudinal scales and the longitudinal guide rails are correspondingly arranged, and one longitudinal scale is arranged on the outer side of each longitudinal guide rail;
the transverse guide rails can vertically move on the longitudinal guide rails, the longitudinal ends of the transverse guide rails are detachably connected to the two longitudinal guide rails, and transverse scales are arranged on the longitudinal two sides of the top surface of each transverse guide rail;
the first tool holders are arranged on the transverse guide rail at intervals along the transverse direction, each first tool holder can move on the transverse guide rail, and the first tool holders are detachably connected to the transverse guide rail;
puncture mechanism, puncture mechanism sets up two between the first blade carrier on the transverse guide, puncture mechanism can move on the transverse guide, puncture mechanism can mar on the experimental sample wafer of application, puncture mechanism can operationally adjust the mar degree of depth.
2. A differential scribing apparatus for a coating test panel according to claim 1, wherein said differential scribing apparatus further comprises: and two longitudinal scale pointers are arranged at two ends of the transverse guide rail respectively, and the longitudinal scale pointers are overlapped with the transverse center line of the transverse guide rail.
3. A differential painting test panel apparatus according to claim 1, wherein the puncture mechanism comprises:
a second tool holder;
the control mechanism is arranged on the top surface of the second tool rest;
the cutter needle, the cutter needle with control mechanism connects, the cutter needle can pass the experimental sample piece of application, control mechanism can control the cutter needle passes the degree of depth of the experimental sample piece of application.
4. A differential painting test panel apparatus according to claim 3, wherein the control mechanism is a blade carrier nut, and the cutter pin is attached to a bottom of the blade carrier nut.
5. A differential painting test panel apparatus according to claim 1, wherein the fixing mechanism comprises:
the pressing piece is arranged on the operating table;
and the compression nut fixes the compression sheet on the operating table.
6. A differential painting test panel device according to claim 5, wherein the table is provided with two sets of said pressing pieces transversely opposed to each other, each set of said pressing pieces including two pressing pieces, one of said pressing pieces being provided at one longitudinal end of the table and the other of said pressing pieces being provided at the other longitudinal end of the table.
7. A differential scribing device for a painting test panel according to claim 1, wherein both longitudinal ends of said cross rail are detachably connected to both of said longitudinal rails by means of longitudinal fastening nuts, said cross rail is provided with two sets of said longitudinal fastening nuts in a transverse direction, each set of said longitudinal fastening nuts includes two of said longitudinal fastening nuts, one of said longitudinal fastening nuts is provided at one longitudinal end of said cross rail, and the other of said longitudinal fastening nuts is provided at the other longitudinal end of said cross rail.
8. A differential scribing device for a coating test panel according to claim 1, wherein said first blade holder is detachably attached to said lateral rail by a lateral fastening nut, and a lateral fastening nut is provided at each of both longitudinal ends of said first blade holder.
9. A method for coating a test panel according to any one of claims 1 to 8, comprising the steps of:
fixing the coating test sample plate on the operating platform by using the fixing mechanism;
pushing the transverse guide rail to slide on the longitudinal guide rail, and fixing the transverse guide rail on the longitudinal guide rail when the transverse guide rail is pushed to a longitudinal first marking differential line position of the coating test sample plate;
pushing the two first tool rests on the fixed transverse guide rail, reading a length value between the two first tool rests on the transverse scale, and fixing the first tool rest on the transverse guide rail when the length value is equal to a length value of a target scratch of the coating test sample plate;
the depth of the puncture mechanism for puncturing the coating test sample plate is adjusted, and then the puncture mechanism is pushed to repeatedly move on the transverse guide rail between the two first knife rests, so that a scribing line with uniform depth is obtained;
pushing the transverse guide rail to slide on the longitudinal guide rail, reading a length value between the first marking difference line and the transverse guide rail on the longitudinal scale, and fixing the first vehicle frame on the transverse guide rail when the length value is equal to a width value of a target mark of the coating test sample plate;
pushing the puncture mechanism to repeatedly move on the transverse guide rail between the two first knife rests again to obtain a second difference marking line with the length and the depth completely the same as those of the first difference marking line, wherein the first difference marking line is parallel to the second difference marking line;
and (4) removing the coating between the two marking difference lines by using a removing tool to obtain a scratch with an accurate length value and width value and an even depth value.
10. The method of using a device for scoring a paint test panel as recited in claim 9, wherein said removing means is a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110274062.1A CN113514391B (en) | 2021-03-15 | 2021-03-15 | Coating test template scoring device and scoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110274062.1A CN113514391B (en) | 2021-03-15 | 2021-03-15 | Coating test template scoring device and scoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113514391A true CN113514391A (en) | 2021-10-19 |
| CN113514391B CN113514391B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110274062.1A Active CN113514391B (en) | 2021-03-15 | 2021-03-15 | Coating test template scoring device and scoring method |
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| CN (1) | CN113514391B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015219092A (en) * | 2014-05-16 | 2015-12-07 | 日本ライフライン株式会社 | Scratch test machine |
| CN207991908U (en) * | 2018-02-01 | 2018-10-19 | 海洋化工研究院有限公司 | sample streaker |
| CN209699173U (en) * | 2019-04-30 | 2019-11-29 | 安徽联嘉晟智能设备有限公司 | A kind of glass supporter protective film cuts jig |
| CN211401852U (en) * | 2019-08-09 | 2020-09-01 | 唐山钢铁集团有限责任公司 | Device capable of accurately controlling depth of coating layer of scratched sample |
-
2021
- 2021-03-15 CN CN202110274062.1A patent/CN113514391B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015219092A (en) * | 2014-05-16 | 2015-12-07 | 日本ライフライン株式会社 | Scratch test machine |
| CN207991908U (en) * | 2018-02-01 | 2018-10-19 | 海洋化工研究院有限公司 | sample streaker |
| CN209699173U (en) * | 2019-04-30 | 2019-11-29 | 安徽联嘉晟智能设备有限公司 | A kind of glass supporter protective film cuts jig |
| CN211401852U (en) * | 2019-08-09 | 2020-09-01 | 唐山钢铁集团有限责任公司 | Device capable of accurately controlling depth of coating layer of scratched sample |
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| Publication number | Publication date |
|---|---|
| CN113514391B (en) | 2023-06-13 |
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